221100142442124 has 48 divisors (see below), whose sum is σ = 562801331393280. Its totient is φ = 66999927829440.

The previous prime is 221100142442027. The next prime is 221100142442141. The reversal of 221100142442124 is 421244241001122.

221100142442124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221100142442091 and 221100142442100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105419962 + ... + 107496830.

It is an arithmetic number, because the mean of its divisors is an integer number (11725027737360).

Almost surely, 2^{221100142442124} is an apocalyptic number.

It is an amenable number.

221100142442124 is an abundant number, since it is smaller than the sum of its proper divisors (341701188951156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221100142442124 is a wasteful number, since it uses less digits than its factorization.

221100142442124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883390 (or 2883388 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

Adding to 221100142442124 its reverse (421244241001122), we get a palindrome (642344383443246).

The spelling of 221100142442124 in words is "two hundred twenty-one trillion, one hundred billion, one hundred forty-two million, four hundred forty-two thousand, one hundred twenty-four".